Perforating-machine



(No Model.) J. C ASTER.

v PERPOMUII.NG MACHINE. No. 424,759. Patented Apr. l, 1890,

:l i O u o "n 1 Mined/4M UNITED STATES PATENT OFFICE.

JOHN OASTER, OF MINNEAPOLIS, MINNESOTA.

PERFORATING-MACHINE.

SPECIFICATION forming part Of Letters Patent No. 424,759, dated April 1,1890.

Application filed January 13,1890. Serial No. 336,756. (No model.)

To a/ZZ whom, it may concern:

Be it known that I, JOHN OASTER, of Minneapolis, Hennepin county,Minnesota, have invented certain Improvements in Perforating-Machines,of which the following is a speciiication.

My invention relates to improvements in machines for the perforating ofpaper in ornamental designs, figures, or patterns, thus forming astencil or pattern for stamping the outline of the desired figure by theuse of powder or paint passed through the perforations and upon thesurface beneath; and it consists in improved means for supporting,guiding, and driving the perforator upon the surface operated upon.

My invention consists, further, in the construction and combinationhereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a side elevation of my improved device shown secured upon asewingmachine table. Fig. 2 is aplan view, and Fig. 3 an end elevation,of the same. Fig. 4 is a detail vertical cross-section of the perforatorhead or case, showing the mechanism for operating the same; and Fig. 5is a detail of the chuck for holding the perforating-needle.

In the drawings, 2 represents a suitable table or other firm support,upon which my device may be secured having the standards or legs 3.

4 is the driving-Wheel, by means of which the device is operatedsuitablyjournaled underneath the table.

5 is the treadle, and G the pitman connecting the same to saiddrive-wheelin the ordinary manner, by means of which it may be operatedby foot-power, a suitable belt 7 upon the wheel a transmitting itsmotion to the device.

I prefer to secure my device upon its support by means of screws S,passing through holes 9 in the angle-iron base 10. Journaled upon thebase 10 is the transverse shaft 11, having at one end the belt wheel ordrum 12, carrying the drive-belt 7, and at the oth er end a similarbeltwvheel 13, iitted with an elastic belt 1e for transmitting themotion of the shaft to the machine. By the use of this transverse orlateral shaft the machine is brought directly in front of the operator,while the drive-wheel is at one side, as in a sewing-machine. Rigidlysecured to the base 10 is the upright standard 15 to the offset orlaterally bent top of which is pivotally secured or susp ended the yoke1G, carrying upon its depending arms the groovcd wheels 17. Supportedupon these wheels 17 is the rectangular frame or carriage 18, adapted tobemoved freelyfroni end to end along said wheels. .Iournaled in saidframe or carriagelongitudinally thereof is the shaft 19, adapted to beturned on its bearings by means of the elastic belt 1st, passing overthe same as actuated by the shaft 11. The belt passes over the shaftitself, and as the position of the frame is shifted the belt adheresslightly to it and is stretched until it works back along the shaft to aposition above the wheel 13. The supporting-standard 15, standing at oneside of the shaft, allows the belt to be stretched through between thearms of the yoke in the movement of the frame.

Rigidly secured to the frame is the tube 20, fitted at its outer endwith the head or case 22, in which is arranged the perforatingneedle andits driving mechanism. A smaller shaft 34, rigidly secured tothe shaft19, extends from it through the tube as a bearing and is iitted with thecrank-wheel 2i, to which is pivoted the pitman 25, connected to theperforating-needle plunger 2G, which is held in vertical bearings in thecase The needle 23 is secured to the plunger 2G in any suitable manner,as by inserting it in the slotted chuck 27, upon which is screw-threadeda collar 28, by means of which the sections of the chuck are compressedtogether to clamp the needle. Rigidly secured to the case 22 is thetransverse bar 29, in which is adjustably supported the foot or rest 30,having the stem or standard 31 passing through the crossbar 29 andadjustably secured therein by means of the set-screw 32. This foot orrest 30 is adapted to bear upon the material to be perforated while themachine is in operation, and is adjusted to support the perforator inthe desired position in reference to the work, the foot being movedabout upon the surface of the maternl in the progress of the operationof perforating.

The frame is preferably cast solid, so that the machine may be as steadyas possible in The mode of operation is as follows: The base 10 beingproperly secured to the sewing-machine table and the drive-belts of themachine arranged in place, the paper or other material to be perforatedis placed upon the table. The foot or rest SOis then adjusted from itssupporting cross-bar 29 in such position as to permit theperforating-needle in its downward movelnent to just penetrate the massof paper. Upon power being applied to the treadle 5 the shaft 11 isdriven at a high speed and its motion transmitted to the shaft 19, whichin its rotation drives the crank 24 and reciprocates the needle 23'. Theposition of the needle with reference to the material operated upon isdetermined and shifted by the hand of the operator placed upon the bar29, whereby7 the machine can be guided quickly and accurately over thelines of the design or pattern, and the high speed at which theperforating-needle is driven serves to delineate the lines by a closeseries of perforations. The needle can be moved in any directionlaterally over the table, the carriage 18 traveling freely to and froupon its supporting-Wheels 17 and the supporting-yoke turning upon itspivot as directed by the hand of the operator. The belt 14, being madeof rubber or other elastic material, clings to the shaft 19, so as tocontinuously drive the same, notwithstanding` its movement to and fro orabout the pivotal support of thc yoke.

I claim- 1. In a device of the class described, the

combination, with a suitable base or support, Y

of an upright standard secured thereon, a yoke pivoted upon saidstandard at an offsetpoint and having a grooved wheel or sheave pivotedupon each of its depending arms, a frame or carriage supported upon saidsheaves and adapted to be moved to and fro upon them, a shaft journale'dlongitudinally in said frame, having suitable crank-connection with theperforatingneedle and adapted to be driven from any suitable source ofpower, substantially as and for the purposes set forth.

2. In a perforating-machine, the combination, with its frame orcarriage, of a pivoted yoke having upon its depending arms wheelsadapted to support said carriage, and a standard supporting said yokearranged within the yoke and having the point of pivot-suspension ofsaid yoke offset, as and for the purposes set forth.

3. In a device of the class described, adapted to be driven byfoot-power, the combination, with its treadle and'drive-wheel, of alateral shaft interposed between said drivewheel and the driving-shaftof the machine, an elastic belt connecting said lateral shaft with thedriving-shaft of the perforator, a frame carrying said driving-shaft insuitable bearings, a yoke supporting said frame, a

standard Within said yoke supporting the same upon a pivot offset fromthe vertical portion of said standard, and an adjustable crank driven bysaid shaft and linked to the perforating-needle, substantially as andfor the purposes set forth.

In testimony whereof I hereunto set my hand this Sth day of January,1890.

JOHN CASTER. Witnesses:

T. D. M'ERWIN, A. MAE WELCH.

